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Since librt and libpthread are now integrated into libc, including
unwind-resume and unwind-forcedunwind implementations of unwind code
makes no sense. Only unwind-forcedunwind is now included with
functions hidden to avoid them overriding the ones from libgcc_s.
* libpthread/nptl/sysdeps/generic/unwind-resume.h: New. Define
generic PERSONALITY_PROTO and PERSONALITY_ARGS and set
HAVE_ARCH_UNWIND_RESUME to 0.
* libpthread/nptl/sysdeps/pthread/unwind-resume.c: Move...
* libpthread/nptl/sysdeps/generic/unwind-resume.c: ... here. Include
generic implementation of _Unwind_Resume on the condition that
!HAVE_ARCH_UNWIND_RESUME. Make functions hidden to prevent them
from overriding libgcc_s's ones.
* libpthread/nptl/sysdeps/pthread/unwind-forcedunwind.c: Likewise.
* libpthread/nptl/sysdeps/arm/unwind-resume.h: New. Define
ARM-specific PERSONALITY_PROTO and PERSONALITY_ARGS and set
HAVE_ARCH_UNWIND_RESUME to 1.
* libpthread/nptl/sysdeps/arm/arm-unwind-resume.c,
* libpthread/nptl/sysdeps/arm/pt-arm-unwind-resume.c,
* libpthread/nptl/sysdeps/arm/rt-arm-unwind-resume.c: New.
ARM-specific implementations of _Unwind_Resume resp. for libc,
libpthread and librt.
* libpthread/nptl/sysdeps/Makefile.commonarch: Remove both
arm-unwind-resume and rt-arm-unwind-resume from
libpthread_arch_CSRC.
* libpthread/nptl/sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c,
* libpthread/nptl/sysdeps/unix/sysv/linux/arm/unwind-resume.c: Remove.
Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
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Similar to musl libc a single libc has many benefits and solves
some open issues with uClibc-ng.
- no pthread_mutex_* weak symbols exported anymore
- applications no longer failing to link when either
-lrt or -lpthread are missing for dynamic and static linking mode
- smaller C library
- slightly better runtime performance
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Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
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Sync pthread_spin_lock/pthread_spin_trylock with GNU libc as it avoids
any usage of deprecated SWP instruction. This allows to build uClibc-ng
for ARMv8 Cortex-A53 CPU in 32 Bit mode.
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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This matches a similar change made to glibc.
No functional changes here.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Provide common prototypes for __longjmp, __libc_longjmp, __libc_siglongjmp
_longjmp_unwind, __libc_unwind_longjmp in setjmp.h in preparation for use in LT new
Add __longjmp to h8300 and i960
Make common longjmp.c good for NPTL
Guard _longjmp_unwind use in sh's longjmp.c for NPTL (I think sh could use the common one)
Remove unneeded attribute_noreturn, prototype provides it already
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Do not pollute libraries with its own implementation of __aeabi_unwind_cpp_pr1 code.
Just add it to uclibc_nonshared.a archive and share it.
This fixes build issue with static linking of application due to multiple symbol
definition in libgcc_eh-a and libpthread.a or librt.a
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Signed-off-by: Nitin Garg <nitingarg98@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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The SSP_ALL_CFLAGS in nptl arch CFLAGS leaks out and forces things
like dl-support.c, brk.c, sbrk.c memcpy, etc to be built with
-fstack-protector-all. This is bad when linking statically since
initializing TLS will call those functions before SSP is initialized.
The libpthread itself will still be built with -fstack-protector-all
due to CFLAGS-nptl has SSP_ALL_CFLAGS in libpthread/nptl/Makefile.in
Thanks to Timo Teras for helping with this.
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Now automatically picks the correct (arch and subarch specific) impls in
favour of generic impls.
make O=/tmp/objs PREFIX=/my/sysroot -j
works now as expected (both out-of-tree as well as parallel-safe).
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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* Introduce pregen-headers-y which is list of generated headers
during the build and add this to pregen target in top level makefile.
Also add nptl_headers, nptl_arch_headers, nptl_linux_headers
to this if compiling with nptl.
* Replace pthread_pregen var with pregen-headers-y.
* Make nptl_headers, nptl_arch_headers, nptl_linux_headers variables
instead of sub targets.
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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This patch will re-factor and simplify sysdep headers
handling for nptl branch.
The reason is to use some useful macros in asm code (i.e. ENTRY()) that are available
only into nptl branch because are defined in sysdep.h header under the nptl folder
even if they are not related to NPTL at all (this was likely due to a bad choice done
at the early stage of NPTL porting).
This is a required steps for integrating into master branch some asm code available in
nptl branch for sh4.
The main changes are described below:
nptl/sysdeps/generic/sysdep.h (moved) ---> libc/sysdeps/linux/common/sysdep.h
nptl/sysdeps/arm/sysdep.h (moved) ---> libc/sysdeps/linux/arm/sysdep.h
nptl/sysdeps/sh/sysdep.h ---------------------|
nptl/sysdeps/unix/sh/sysdep.h ----------------|
nptl/sysdeps/unix/sysv/linux/sh/sysdep.h -----|
nptl/sysdeps/unix/sysv/linux/sh/sh4/sysdep.h -|
|(merged) ---> libc/sysdeps/linux/sh
nptl/sysdeps/unix/sysdep.h (deleted)
Similarly the mips and arm sysdep.h should be merged and updated as for sh arch.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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This reverts commit 641e7e36ad0a9b2899b04f256c5b243ada7da279.
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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gets rid of nptl_headers,nptl_arch_headers,nptl_linux_headers targets
also, clean up extra slashes in i386/sparc and unify the implementation
of nptl header generation between all archs
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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targetting arm,sh,i386,mips,sparc for now
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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